Doctors whose bodies are regularly exposed to x-rays may be adapting at the cellular level to protect themselves against radiation, according to a new study. The research hints that humans could adapt to withstand radiation exposure.
Enterprising engineers are constantly figuring out ways to generate electricity from just about anything that has a little extra energy to give, from ocean waves and river currents to much smaller micro-generators that harvest ambient vibrations from automobiles crossing a bridge. Now Swiss researchers want to tap an even tinier source of energy: the human bloodstream.
A new DNA-based cell-transformation method could be a simpler, safer way to convert cells into beating heart cells, according to researchers at Johns Hopkins Medical Institutions. It involves no viruses and is a foolproof method to create cardiac cells that beat, they say.
A group of researchers at Imperial College London recently cross-referenced a couple of studies on heart health and have made an interesting recommendation to fast food outlets: rather than fries, each order should come with a free statin drug. A dose of statins, they reason, reduce heart attack risk to about the same degree that a cheeseburger and shake raise the risk. In effect, the two should neatly cancel each other out.
They say only time heals a broken heart, but Duke University researchers think they can do better. Using embryonic stem cells from mice and their own novel molding technique, a team of researchers at Duke has developed a three-dimensional heart cell "patch" that conducts electrical impulses and contracts, two all important characteristics of heart tissue.
The first American to be implanted with a wireless pacemaker is now walking happily around while the device communicates remotely with her doctor.
Carol Kasyjanski of New York became the first patient to receive the new pacemaker, which was made by St. Jude Medical Inc. and approved by the FDA in July. The device downloads all its information into a remote monitor in Kasyjanski's home at least once a day and the monitor automatically assesses the performance of both the pacemaker and the patient's heart. Then it uploads the information to a central server.
Here at Popular Science, innovation is the name of the game. Now, our Features Editor has pushed the envelope on the blog's ubiquitous form by invoking a great form of poetry known for its compact use of language and emotive imagery. We bring you Nicole Dyer. We bring you SciKu.